Time-controlled draft regulator



May 1, 1923.

M. B. FERMANIAN TIME CONTROLLED DRAFT REGULATOR Filed AprilllO 1922 3 Sheets-Sheet l INVENTOR n m n .a m, M T m May 1, 1923.

' M. B. FERMANIAN TIME CONTROLLED DRAFT REGULATOR 3 Sheets-Sheet 2 Filed April 10, 1922 A TORNEY WITNESS:

May 1, 1923.

M. B. FERMANIAN TIME CONTROLLED DRAFT REGULATOR I Filed April 10, 1922 5 Sheets-Sheet 5 INVENTOR i L n aim WTNESS:

ATTORNEY MARK B. FERMANIAN, 0F TROY, NEW YORK.

TIME-CONTROLLED DRAFT REGULATOR.

Application filed April 10, 1922. Serial No. 551,112.

To all whom it may concern Be it known that 1, MARK B. FERMANIAN, a citizen of Armenian Republic, residing at Troy, in the county of Rensselaer and State of New York, have invented new and useful Improvements in TimeControlled Draft Regulators, of which the following is a specification.

This invention relates to a time controlled device for regulating the draft of a stove, range, furnace, or the like and the object is to provide in connection with a clock mechanism, a device. serving to mount the clock and to enclose the operative elements connected by flexible devices with the, dampers and draft slides of the heating apparatus.

A further object is to provide a controlling device which'is under the control of the clock mechanism, and which shall include an actuating arm adapted to be thrown by a spring when released by a trip or trigger operated by the alarm mechanism of the clock.

A still further object is to provide particular means for rendering thealarm mechanism effective for the purpose stated, and for discontinuing the operation of the alarm mechanism when the actuating arm above mentioned has been released.

With the foregoing and other objects in view the invention consists in the novel construction and arrangement of elements described and claimed, it being understood that modifications in the construction may be made within the scope of the claims withoutdeparting from the spirit of the invention.

In the drawings, Figure 1 is a perspective view showing the apparatus as applied to a kitchen range; Figure 2 shows a hot air furnace in side levation and the draft controlling devicesproperly positioned and connected; Figure 3 is a. front elevation of the operative mechanism, the door of the casing therefor being open; Figur 4 is a horizontal section, on line 4.4 of Figure 3; Figures 5, 6, and 7 show details of construction; Figure 8 shows a modified casing within which the clock is fully inclosed, together with other mechanism not appearing in this view but shown in Figure 3.

A casing 10 is mounted or supported in any suitable manner, as by securing the same to the wall of a room by means of screws 11 and 12. The casing includes a rear wall 13 cut away as shown at 14:, and furtherincludes a door 15 hinged to the casing and provided with a cut away portion 16, corresponding with the cut away portion of the 7 rear wall of the casing.

The clock 18 may b of standard type, a clock provided with an alarm mechanism being required. That element of the alarm mechanism projecting from the casingand usually serving as the hammer for sound v1ng the bell, is indicated at 19, and in this instance serves as a member of the releasing mechanism. The casing of the clock carries curved outwardly projecting and offset ele ments 21 and 22 whichmay be termed hooks, these elements engaging th apertures 23 and in the flanged portions 25 and 26 of the casing, thereby serving to retain the:

clock with the lower portion of the casing in direct cooperation with the cut away portion of the door and the rear wall of the casing. The door is provided with a flange 26 on the edge opposite the hinged portion;

this flange serving to fit over one side wall of the casing and retain the door. in closed position.

The actuating arm 30 is pivoted at 31 on the rear wall of" the casing, and connected with the end 32 of this arm is a spring 33 secured to the wall of the casing at the point The'end 32 of the arm 30 is provided with a notch as shown, and this notch-is en'- gaged by a trip or trigger 35 pivoted at-36 and having its lower end drawn towards the right as shown in Figure 3 by a spring 37.

This trip 35 is provided with a lower curved portion 38 engaged by the-curve. portion 39 of arm 30 so that upon downward movement of the arm '30 the lower end of the trip may be thrown outwardly towards the left and the end of the arm clear'the trip so that the notch at the end 32 is engaged in the manner shown in Figure 3. The

upper offset end 40 of the trip 35 is directly in the path of movement of the element 19 of the alarm mechanism,'and when the ele'-. ment 19 is set in operation at the time for adju ting the draft elements, he t i is thrown out of engagement with the actuating arm 30, the elements 35 'moving about its pivotal point in this operation. In setting the device for operation the actuating arm is drawn downwardly at the left and the spring 33 thereby placed under tension, so that upon the release of the trip, the arm 30 moves under the influence of the spring 33, the left hand end ofthe arm moving upwardly and producing tension on certain flexible devices for controlling the in the manner indicated the latter has imparted a blow to the trigger for releasing the actuating arm 30. The lower end of the rod 44 is: pivotally connected at 46 to the arm 3 0 so that after the device has been operated the element just described serves to automatically discontinu'e the operation of the alarm mechanism. Connected with'the 'left hand end of the arm 30i's' a rod or wire 48 provided with a loop or ring 49' having connection with a chain or other flexible device 50. This chain 50 includes a"'ring 51 and an additional ring 52 at the extreme end thereof. Therig-ht 'h'and end of the arm 30is connectedwith achain 53 having a hook 5 1- or other engfa'gingclevice on the end thereof. This chain last named may pass out ofthe casing through 7 the" side aperture or through lower aperture 56, depending upon the exact use to which the device is put, that is Whether applied to the draft elements of a kitchen range or to the corresponding elements: of a hot air or other furnace. A guiding device'56 mounted on the rear wall of 'thera'singaccommodates the chain 53, and other guiding devices may be provided if requiredr" In applying this device to a kitchen range, the chain 53 be connected by means of hooks-"5a with the damper in the pipe',this damper being designated 60. The chain '50 may-pass around 'a pulley, the loop or-ring 51 thenengaging the operating device of the lower draftslide 62. The chain thenapasses: upwardly and the element 52 is connected: with the operating" device of the check draft slide- 63. This arrangement is effective 'when'the device is connected with apstove'or range of the type shown in the drawings; and it is obvious that when the upperiandu lowen draft slide are both on the front of the range or both on the one side thereof zaslightly difiereut arrangement of the; chains and pulleys; will be required, it merely being! necessary' that the chain 50 be connectedrwithi'both;slides in exactly the mannerindicated. Inapplying the device to the draft element: ofia-vhotfair furnace of the type-shown in outline in liigure'fi; the chain. 53 is made somewhat 'longerwaind passes through the prising a clock including an alarm mechanism, a pivoted actuating arm, fiexiblede vices connected therewith on opposite sides of the pivotal point and adapted for con nection with the draft elements of a heating apparatus, a spring for throwing said arm, a pivoted tripfor engaging one end of the arm and retaining the latter with the spring under tension,'the release of the trip serving to release the arm and operate the draft elements through the flexible devices, one end of the trip being engaged an element of the alarm mechanismfan-eng aging device formed on one end ofth'e' arm and said arm acting to throw the trip away from the arm andoutof the path thereof when placing the spring'under tension, the tripthen contacting with theengaging device for retaining the arm and r'od pivotally connected with one end of'the actuating arm and including an'ofl'set member movable into engagement with said' element" of the alarm mechanism for rendering the latter inactive.

2; A' device of the class described comprising a pivoted actuating arm, a spring for throwing saidarm flexible devices connected with opposite ends of the arms and adapted for connection with the draft elements of a" heating apparatus, atrigger for retaining the arm in position with the spring 'under'ten'sion, the trigger being piv oted at the pointintermed iate of its ends, a spring for retaining the trigger in operative position, the upper end of the trigger including an ofl set portion, aclock including' an alarm mechanism, one element of which is positioned for imparting a blow to the trigger on the offset end thereof upon the operation of the alarm, a stop for limiting the movement of the trigger, and a device operated'by the release ofthe actuatingi arm for retaining the alarm mechanism inactive andacting to obstruct thepathof movement of: said element of the alarm mechanism, and prevent impact on the trig ger; In testimony whereof Iatfi'x my signature.

' MARK B.- FERMANIAN? 

